Wilmette Junior High School

Wilmette Junior High School is one of the sprawling middle schools in Wilmette, Illinois, operated by Wilmette SD 39, with 766 students on its rolls from grades 7 through 8. Compared to the state average of about 462 students per school, that is 66% above typical.

Wilmette SD 39 comprises 6 schools with combined enrollment of 3,288 students; Wilmette Junior High School is among them.

On demographics, Wilmette Junior High School records that 72% of the student body identifies as White. Beyond that, the school reports 11% multiracial, 9% Asian, 8% Hispanic. By comparison, Cook County as a whole is about 44% White, so the school skews considerably more White than its surroundings.

Looking at the economic backdrop, Staff filings list 65 full-time-equivalent teachers, which works out to roughly 11.8:1 students per teacher. The state averages around 13.0:1, so this campus is tighter than the state norm typical.

In the area at large, ACS estimates for Cook County put median household earnings sit near $83,498, roughly 43% of adults have completed at least a four-year degree, and roughly 10% of residents live below the federal poverty line. In all, Cook County runs 1406 public schools (combined enrollment of about 697,934 students), of which Wilmette Junior High School is one.

The closest other public school is Romona Elem School, roughly 0.3 miles away. Within five miles, there are 8 other public schools.

The campus sits in a bedroom-community setting.

Looking at the recent track record. Over the past 7-year window, the student count fell 14%: 887 students in 2018 compared to 766 in 2025. Class-load math has fell: from 13.2:1 in 2018 to 11.8:1 in 2025.

In the discussion threads here, members of the Wilmette Junior High School community share and discuss school events, parent volunteer needs, and clubs. Parents, students, alumni, and staff are welcome to weigh in.